Turbo 350 Vs 700r4 - 700R4 Transmission, 700R4, Rebuilt 700R4 Transmissions, Monster 700R4.

Adapters are available but for extra cost. i remember reading that someone had swapped the th350 roller clutch with a 700r4 in their 350. The process can be done by just about. The think which you choice totally depends on what you want it for. As it depends on the make, model, and year of the transmission. And btw the 400 tranny is stronger than the 350 that’s why back in the day the 350 trans was mostly in cars and the 400 was a truck trans. I think I worked on every turbo 350 GM made at one time. Are there exceptions to this or is it certain. GM TH-250, TH-350, TH-400, & 700R4 1-800-345-4545 jegs. I purchased a universal dust cover from O'Reilly's Auto Parts, part # P10 CA87 that fits the truck version of the 700R4 transmission. Are you looking TCI Auto Transmission Dimensions? Use this Automatic Transmission Dimensions Guide to help answer your questions. I was told that my current tranny a turbo 350 might need a new tranny pump because my torque converter was installed improperly. This is because the LM7 flex plate is metric spacing. CT8886 - A filler tube boot for the following transmissions: Turbo 350 Turbo 400 Turbo 700R4 4L60 4L60E 4L65E 4L70E This seal is easy to replace and will stop the leaking at the filler tube connection of the transmission. It replaces the stock center support spring and magically saves your transmission case from unrepairable damage. GM put the 200 behind the Turbo V6 in every Grand National and Turbo Trans Am they built. The length i believe is gonna be the same on all the small block chevy transmissions. I didnt know i was putting in a diffrent tranny. craigslist houses for rent aurora mo This can be attributed to its hydro-mechanical design which makes it more …. The HydraMatic 350 transmission was prevalent in nearly all GM, rear-wheel-drive cars and trucks through 1984. You can us the same crossmeber slide it back and use the back hole as the front. When it comes to luxury vehicles, the Lexus RX 350 is one of the most popular models. I had both with the same cross member (stock 2. 700R4 - I know a lot of you guys have switched from the 350 to the 700. Outlaw Racing OR2731 Carburetor Float Needle Keihin Compatible with Yamaha Honda Kawasaki Suzuki (Pair) $1195. typically depends on what you want and what kind of car you drive—comparing the 200R4 transmission vs 700R4. Driven gear tooth count = Drive Gear tooth count x Axle Gear Ratio x Drive Tire Revolutions per Mile (or 20168 / Drive Tire Diameter) / 1001. 25 pounds) immediately by dropping the pan and draining the fluid. Unlike the 700R4, most 200-4Rs have a multicase bellhousing for use with Chevrolet, Buick/Olds/Pontiac (BOP), and Cadillac engines. 2004-05 Dodge Overdrive Cancel Switch. Transfer case is different as well from the TH400 to the TH700R4. 06:1) in the 700R4, you are in the right place. It did not necessarily replace a particular transmission. Matt - Dreaming of AZ wheeling. It is a 93'/700R4 so it doesn't have the electronics to deal with. Includes LS-style 168 tooth flexplate, torque converter adapter sleeve, flexplate bolts, torque converter bolts, and motor mount adapters. Feb 21, 2010 · 350 hydromatics come in 3 tailshaft lenths (sic) 6 inch 9 and 12 they have the same output spline flexplate bolt pattern and engine mounting pattern to swap out a 700 r4 you need a 9 inch you will have to move the transmission support forward several inches. 700r4 & th350 can utilize the same trans mount. It also uses the same vacuum modulator as the Turbo 350. Hell, a 350 in good shape with just a shift kit is capable of holding 400+hp, which is more than the majority of the trucks on this site are making. I have a question I have a 2 speed power-glide,and a 350 turbo. (the 200 and 200r4 are differant) JJ. This transmission was also used in the Chevrolet Camaro, Corvette, Impala, and many others. Setting up a street strip SB now that we're expecting to be 530 to 550 hp (pending an engine dyno ) that may be running between 120 and 125 in a quarter. No racing here just pleasure driving. A turbo 350 is all you need and is lighter than a 400 trans. von '69 Malibu Team Chevelle Member #15. Verified purchase: Yes Condition: New Sold by: smallpartkits2012. Shift control– The TH350 is controlled by engine vacuum and a kick down cable. I just popped the driveshaft off of my z to rebuild the motor and install a 200 4r trans. I just wanted to get opinons on the transmisson. 0-liter crank is the easiest to deal with in the way of a non-electronic transmission swap. The 200r4 transmission is an automatic transmission that has a torque converter as well. com/speedometer-gear-calculator. Universal cables work fine sold at summit etc. The OD makes the car WAY more driveable. The 700R4 can be identified by its 30. 58 if you do the math) That means 3:42 gears are going to act like 4:00 gears off the line. Follow this link to learn how to Count the Teeth on a Speedo Gear. If you're gonna beat the snot out of it then the th400 is the better choice but ONLY with the rear (and driveshaft) to back it up. accident on highway 281 yesterday Just make sure yours takes the boot (some early transmissions took oring instead). If you look at the cruising rpms of the different tranny, say for a given 3. 23:1 gear will still be fun and economical behind a 400 Poncho. I have a 350 engine, 350 turbo trans, and the 3:50 rear is a 9" from an early Bronco. The Sidewinder can be installed on any street, strip or off road transmission. ferguson bathroom mirrors WE WILL BEAT ANY COMPETITOR PRICE APPLES TO APPLES. :texas: this is for th350,th400,700r4. SOmeone's going to move this to the tranmission section I'm sure, but a turbo 400 is a 3 speed. Dimension “A” is the overall transmission length and varies with the length of the extension housing used. If it's a 6" tail-shaft, the 700r4 will be ~3 inches longer. The 4L60E is a stronger transmission, just requires a TCM. According to Chevy High Performance the. photos of danielle north The big swap these days is to replace the 350 with a 700R4 in C3 cars. It's not a bad switch the drive shaft will have to be cut about 3in. Standard linkage adjustment will need to be done. Read More: 545RFE Transmission—All You Need to Know. 36 rear ratio and you get an overall ratio of 10. 67: n/a: GM Turbo Hydra-Matic 700-R4/4L60E 3. The 1947 - Present Chevrolet & GMC Truck Message Board Network > General Truck General Swap Info: The Turbo-Hydramatic is a favorite because of its abundance. craigslist gigs near hillsborough county fl T350 is stronger of course, needs less done to it to handle some abuse. These transmissions had a 25 year production life between the two of them. I actually have learned some of my tricks and upgrades from him. It's currently got a chevy 327 with a th350 and r200 rear end. green farms in alliance ohio The 4 transfer cases availalbe in Squarebodies from 73-91 were NP203, NP205, NP208 and NP241C. 68: Speedo Gears Link - Team Chevelle. I have to check my hydraulic diagrams at work but I thought the cooler circuit was cut off in lockup with the 700R4. First, let us put the Myths to rest. Turbo 350 (The Rugged): Turbo 400 (The Mighty): THM700R4 (The Pioneer): 4L60E (The Evolution): Gear Ratios – Mastering the Drive: Transmission Types: The TH350: A Three-Speed Classic. single braids with cornrows The modulator valve on a TH350 does much of the pressure control. The 4L60E: The Modern Era’s Answer. But (like with your setup) the 3 speed TH400 or 350 doesn't suck all THAT much extra gas, and a couple of extra bucks or so at every fillup is hardly enough to warrant the $1K to $2K swap on the basis of cost alone. This is an older thread, you may not receive a response, and could be reviving an old thread. Also I have to think about how 3. Looking around a company offers a 700r4 tranny kit with everything. The primary objective of this project was to replace the Super Turbine 300 2-speed Powerglide automatic. Converting from a Turbo 350 or Turbo 400 3-speed to the 700R4 Monster transmission may also increase the value of your vehicle. That means this extra low first gear will give the same. If I was planning to run just the th350 with the short tail shaft, a 3. This is compared to the 700r4 which takes a longer shape than a rectangle. Hi Everyone, Figured I'd start an all-encompassing TH350 Transmission thread, similar to my 700R4 thread, to serve as another repository for information about these transmissions. This kit will convert your 1980s or early 1990s 700R4 / 4L60 electric speedo setup back to the original mechanical setup so you can get a proper speedometer reading on your older …. It is one of the most popular tax programs available, and for a good reason. I have an 86 1008 military truck. I asked the transmission builder what he recommended and he said just dex 3 is fine I could go synthetic but it'd shift softer. -6 x 1/4NPS is the correct size for GM turbo 350, Turbo 400, 700R4, 4L60E and many other GM transmissions. and what type of headers or exhuast should i use and is there a kit or some type of motor mounts i would need to do the swap i will probly use a carb. For our example, we'll use a common 700R4. Transmission swap- TH350 to 700R4. These transmission mounts take the sloppiness out of your original rubber-mounted drivetrain. Nov 21, 2011 · I believe it depends on the tail-shaft of the TH-350. Mar 4, 2018 · Elsewhere in this story we’ve listed the ratios of both the TH350 and the 700R4/4L60E. There is nothing wrong with the hat or O ring style. The second engine group to go over is the Ford produced. An overall 1st gear ratio of around 10:1 is very quick off the mark, and about as deep as you want to go. Externally, all it needs is a 12-volt source and an engine-vacuum. The GM Turbo Hydra-Matic 700R4 featured a vastly upgraded and advanced architecture than the TH350 with better fuel efficiency. The 200-4R is very similar to the 700R4, although there are some differences between the two of them. young black youtubers You can pick up a good used REBUILDABLE 700R4 for around $75 bones. The 700R4 and 2004R were the first GM automatic transmission to come from the factory with a locking torque converter. If you have any other question I migth be able to help just did it on a 71 malibu these winter. metra llc1 installation instructions But smartest would be a 200R4 as it gives you an overdrive 4th gear, and no electronics to make it work. 61 rear gear for cruising or the 200's 4th = 2. amc indian river 24 showtimes Look for a broken, missing, cracked connector or hose. The TH350 (Turbo-Hydramatic 350) and TH700R4 (Turbo-Hydramatic 700-R4) can be thought of as relatives of a sort: uncle and nephew, if not father and son. The Turboglide was an option in 58 thru 60? and was a strange beast with many a problem from what I understand. The THM350 is a 3 speed automatic transmission that was manufactured by General Motors. Adjusting is really not hard at all. Even the late-model LS guys have been seen rocking the classic TH400 on occasion. And came a replacement for the former three-speed TH350 automatic transmission. The advantages are less heat, better fuel economy and more power delivered to the ground. The TH400 is stronger, but the 700R4 built right, or a 4L60e ought to be fine in a Jeep behind a 350. Our A74761DAC utilizes the wide 87-up roller clutch assembly providing more holding power than the. 4:00 is what GM wanted in the 1987 - 1990 IROC-Z Camaro's equipped with the 5. I wish it had a TH350 to free up some needed power though. Both should take the bracket with the square hole with a little notch on one side. If your Turbo 350 has the 9-inch tailshaft, the 700R4 transmission will be the same length, and you will not need to cut or lengthen the driveshaft. Jun 23, 2014 · The '82'89 Turbo-Hydramatic TH700-R4, '90'91 4L60, '92'00 electronic 4L60E, '01'05 4L65E, and the '06-and-newer 4L70E were all designed to replace the tried-and-true TH350. The most common of those, at least with the older GM cars, is the Turbo-Hydramatic (TH) 350, TH400, and 700R4. The 700R4 has an overdrive gear (0. But for the street/strip world, TCI. This easy to install kit will stop drive shaft yoke leakage. It was designed to replace the TH350 so it had the same type parts but didn't fit in the same length case the way the 200R4 does. It's still fun around town even with a 2bbl. THM400 - The THM400 was GM's Heavy-duty 3 speed transmission used from 1964 to 1990. One such IDE that has stood the test of time is Turbo C. com website: External dimensions of a 700R4 are the same as that of a THM350 with a 9-inch tail housing as found in the GMC long wheelbase truck/vans. This Slip Yoke fits the Following GM Transmissions & Transfer Cases and has been in use since the 1960's. 69:1 was a notable improvement from the TH350's direct-drive third gear, allowing the new transmission to keep rpm down while cruising on the. The Turbo Hydro 350 came out later in the 60s, like circa 65. If blasting 9's on the dragstrip is your plan of attack, a performance-built Turbo 400 or Powerglide is the best choice. 52), which improved acceleration. 2004R / TH350 short are a bolt in conversion. Turbo-Hydramatic 350 (TH350) 700R4/4L60/65/70/75: 27 Male: 4L80E: 32 Male: 6L80: 32 Male: 8L80: 32 Female: 10L90* 28 Male with keyway - Most truck applications use a slip-on yoke while cars use a bolt-on yoke. The TH400 transmission turbo is a 4-speed automatic transmission. Notes: Small and big block engines used two different torque converter bolt patterns. CT2297 - A speedo drive gear retainer clip for the TH350 and 700R4 Turbo 350 transmission in Chevrolet. Jump to Latest Follow 1546 Views 7 Replies 5 Participants Last post by Pandora's Box, Apr 3, 2011. The kit he was talking about is for the 4l60e. 50 ratio deeper than the first gear of the th350 so yes better acceleration off the line. Your driveshaft should work fine with either one. The cam became an LT4HOT pushing on 1. Qualcomm’s longer term bet on the automotive sector as a lucrative customer base for its chips and related communications technology is getting a significant push today: The compan. Not sure what else is different. The 700r4 has a lower first gear, so that's a benefit too. I have heard the 4L60 or 700r4 loss is around 55-65 HP depending on the gear ratio and size of converter, 10"-13", again, remembering reading this somewhere. The 700R4 can be built just as strong, and actually stronger than a TH350, since it is roughly based on the TH400. the 350 is 27 5/8" long with a 6" tail shaft, 30 5/8" with a 9" and 33 5/8" with a 12" tail shaft. Most applications require two fittings. From the original two-speed Powerglide, to the three-speed Turbo-Hydramatic 350 and 400, to the 700R4 and 4L60E, and finally to the six-speed electronically-controlled transmissions in late model GM RWD cars, many critical dimensions carried over. Automatic transmission fans will tell you that a TH400 is a stronger transmission, but the TH350 is shorter (meaning easier to adapt in smaller-bodied cars), . Turbo 400: Differences Explained Turbo 350 (The Rugged): Diving into the GM transmission spectrum, the Turbo 350 (TH350) emerges as a testament to the era when auto transmissions were all about rugged simplicity. Alot of people have switch from 350's to 200r4's and 700r4 for their streetablity so why take a step backwards. The TH700R4 is easy to find, either as a used part or a rebuilt unit. It's simple, rotating mass and parasitic losses attributed to OD trannies. Find Lokar Floor Mount Automatic Transmission Shifters and get Free Shipping on Orders Over $109 at Summit Racing! Lokar's floor mount automatic transmission shifters follow in the footsteps of their parent transmission mount and tailmount shifters, having been designed with the same superior craftsmanship. But its a bitch to do, getting both upper & lower holes aligned. For comparison, the Turbo 350's First- and Second-gear ratios are 2. Big fare sale to Europe has tickets to popular destinations such as Portugal available for more than 50% off normal prices. try'n to get the oem patterns for. He's a biggo ugly dude, must be where. A 700r4 is not as simple a trans to get to shift properly as a 350 or 400. The Turbo Hydra-Matic 700R4 is a reliable GM transmission and was used extensively in the GM family of cars for more than 10 years. The TH400: The Big-Block Standard. With a simple twist of a few wrenches, you can either bolt a ’90s 4L60E behind a Gen I small-block, as we’re doing here, or you can run an older non-electronic trans behind a 21st Century LS engine. Getting mixed reviews between 2004r and 700r4. Chevy, Buick, Pontiac, Cadillac, GMC. Engine is stock with the exception of intake and carb upgrades. To use the TH-700, you will have to move the transmission mount crossmember back 1¼ inches, and the driveshaft will have …. The 700R4 i removed was the 27 (i think) spline. The rear end has a powertrax diff. I bought mine and measured the bolt pattern from hole center to hole center and it was 11" and lines up with my extra th350 I have that I forgot I had. The 2004R is a bit more work but worth the effort if you change the rear end gear to a 3. The 700R4 is another four-speed automatic transmission produced by GM. Certainly the easiest way to identify a GM automatic transmission is by the bolt pattern. Now I am thinking of going back to the turbo 301 turbo and I feel the 200 4R would be a better fit for the 301 turbo. Holley offers tips on properly setting up the transmission kick-down levers on GM Turbo Hydro 350 and 400 automatic transmissions. Go with the 2004R! They run behind 9 second Buick Gran Nationals ALL DAY so they will run behind your car. The first gear in the 700r4 is 3. These engines are designed to provide maximum p. The only possible differences there could be would be the length and the U-joint area. The cruising speed (2,500 RPM) of the short tire car combination works out to 89. Sep 3, 2009 · from Sierra Vista AZ. 00 shipping) I ended up buying an "Advanced Adaptors" ADD. The PG has the minimum rotating mass and it's direct through in high. The 700R4 had a run of about 10 years before it was upgraded to the. Torque Converter Bolts, Heavy-Duty. Go to a wrecking yard (or craigslist) and take the bracket and throttle cable off a camaro/firebird. 700R4: Spot the Difference! Transmission Identification Learn how to easily distinguish between a TH350 and a 700R4 . The 700-R4 transmission was part of the overall plan. Given the final axle ratio of 3. Th350 because, I can Build and rebuild with my eyes closed. 601 quacco rd savannah ga there is a : 6 inch tail housing, a 9 inch tail housing. In the 700-R4, it's basically the same governor as a Turbo 350 or 400, by changing to lighter weights, the shift is delayed; different springs can also be used to tailor shift duration (hard and. View Profile View Forum Posts View Articles Registered User Join Date May 2005 Location Socal, Ca Posts 913. (about 4 inches back from the TH-350 location), the driveshaft should even be the right length. I know the drive shaft will have to be cut down. One week I'm in love with the 700R4, the next week it's all about the Gear Vendors. wsb jennifer lopez MPG is really not much different. Currently I have a th350 in my truck and it does ok when towing, just need more first gear and/or lower rear end gears (which are getting swapped to 3. 1") torque converter bolt patterns. going from a th400 to a 700r4 is worlds apart. It was introduced to replace the Powerglide in light duty cars and trucks. 1st gear 2nd gear 3rd gear O/D. Re: Transmission 700r4 vs turbo 400. Set a man on fire, and he\'ll be warm for the rest. Show Printable Version; 03-27-2007 #1. 11 gears, the final overdrive ratio for the 700 is 2. demon summoning sigils The 700R4 fit perfectly in the trans tunnel with no issues, Yes the stock driveshaft will have to be shortened from 54 inches to 51 inches and a new. Sep 27, 2002 · If i have to pull the whole tranny anyway would it be better to just buy a used 700r4 and put it in rather than fix my turbo 350. Categories tech, TH350, TH400 Tags comparison, TH350, TH400. trans mount in rear will most likely be different. The TH350 (Turbo-Hydramatic) transmission identification, decoding, and super-tuning are what sets it apart from other transmissions. Turbo 350 Vs 700r4; 350 Turbo Transmission; Turbo 350 Gear Ratio; Turbo-Hydramatic; Overview; Manufacturer: General Motors: Production: 1964–2012: Body and chassis; Class: 3-speed longitudinalautomatic transmission: Related: Turbo-Hydramatic 125 Turbo-Hydramatic 180 Turbo-Hydramatic 425: Chronology; Predecessor: Dynaflow Hydra …. The slot allows some throttle movement before it downshifts. Jan 17, 2024 · There is a difference in size between the Th400 and Th350. Author Topic: 700r4 vs turbo 350 (Read 4924 times) slimpickens8. This bracket holds the large speedo housing in place. I was able to locate the information online at the gearstar. This allows you to have a varied option list for you to select different deep gears when you intend to have 2-3 gear changes through the shifter flexibly. Have 67 Camaro Convertible and am builing a 396 that will push 425HP. Used on large displacement, high torque engines and engines with towing packages. I am hoping someone can assist me with my transmission decision. This will tighten or eliminate the endplay and the heartburn will begin. This transmission was used in 1969 models and was developed jointly by Buick and Chevrolet. Item CT8852 - TH350 700R4 Transmission Yoke Sealing Kit. The 700r4 is the 4speed version of the TH350. The OEM simply changed the official name of the unit in 1989 — some eight years after the …. I would guess about $75 to $100, for just a shorten. 5 seconds but there's a difference. With a simple twist of a few wrenches, you can either bolt a '90s 4L60E behind a Gen I small-block, as we're doing here, or you can run an older non-electronic trans behind a 21st Century LS engine. Flexplate – Chevy 216 to V8 style transmission x1. trans mount mods are needed, but minor, uses same bushing after all. Simply put, the TH350 is going to keep the vehicle in the power band longer. The 4L60E 1 piece case was produced between 1993 and 1996. The Turbo 400 Long Tail Transmission is a better choice than the Turbo 350 Short Tail Transmission because it has more gears, which means it can transfer more torque and horsepower to the drive wheels. 346 MPH while the tall tire combo cruises at 106. It seems like a huge difference. I have the gear vendors in mine T400 behind a 540 it is great. I love the power off the line but because of the rear end gearing the car is not a highway driver (55mph at …. And the super-tuning of this unit ensures that you can improve its performance. Turbo 250; Turbo 350; Turbo 400; Turbo 700R4; 4L60; 4L60E; 4L65E; 4L 8 0E; Always FAST USA SHIPPING! For questions or to place an order …. A little less commonly known is that the 700-R4 is the exact same transmission as a GM 4L60. Note the 30 Spline 700R4 Torque Converters will also fit the …. From the year 1997 and up, 4L60E transmissions had a 2 piece case with a removable bellhousing and a 6 bolt pattern on the rear. The transfer case is the tail shaft. To determine the correct gear ratio of the speedometer for your car, use the following formula to calculate the number of teeth on the driven gear (round to the nearest available gear): Use the following formula to calculate "tire revolutions per mile" for the formula above:. A new plastic speedometer gear housing sleeve for GM TH350 TH350C TH200 TH200C TH700R4 (4L60) Transmissions. how do the two transmissions compare, besides the fact that the 700r4 has OD. The originally swapped engine’s LT1, head’s became the now extra set of LT1’s in the shop but with necessary mods to run on a conventional block they got bolted to the 880 block. Transmissions Stock Transmissions Custom Transmissions Performance Transmissions Featured Transmissions Replacement Transfer Cases Transmission Coolers Reman Transmissions FAQ The Jasper Process Why Jasper Transmissions RAP®2 Program Value-Oriented Products & Superior Customer Service JASPER is committed to helping …. Turbo 350 (The Rugged): Turbo 400 (The Mighty): THM700R4 (The Pioneer): 4L60E (The Evolution): Gear Ratios – Mastering the Drive: Transmission …. the only thing all automatic transmissions have in c. The 4L60e can work but requires a controller (?) to work with my mild small block 350. 75: n/a: GM Turbo Hydra-Matic 200-4R: 2. Before you begin, disconnect the battery, the TV (throttle valve) cable from the carburetor or EFI and the hold-down bracket, remove the distributor cap, and place the shift lever in Neutral. If you want it it's yours for $100 plus shipping. The tailshaft housing is held onto the main case. The Turbo 350 has been used in many GM cars and some Chevy Blazers. Hi Guys, They did make lock-up 350's and they have a square plug just like 200 and 700,a quick way to tell 350 from 2004R is the case,350's have a bolt on extension housing at the rear of the trans (4 bolts) 2004R has a one piece case. Advertisement Carroll Shelby, mak. CT8120 - A new speedometer gear housing retainer bracket for GM TH350 TH350C TH200 TH200C TH700R4 (4L60) Turbo 350 400 700 Transmissions. However, some drivers push the narrative that Turbo 350 is turbo because of the surge of power and HP that it releases. To adapt a 203 or 205 to a 700R4, you can install this shorter output shaft OR use this spacer. After installing your 87-UP 4L60 roller clutch and inner race, align outer lugs and set into place. The 700R4 has an overdrive while the TH350 does not. You'd enjoy it much nore if you added a TH700R4 trans with the 3. I have a 73 Nova with 350 engine and TH350 trans. Horsepower; 700r4 vs Th350 (key similarities) 1. I found that the yoke is missing a spline, I think. C3 Tech/Performance - Turbo 350 or 700r4 that is the question - Well as time would have it the turbo 350 in our 79 is about on it's last leg. Now I'm reading these posts and finding that some folks say the 200R4 is a better tranny than the 700r4. the Turbo 350's First- and Second-gear ratios are 2. 700r4 or 350 turbo, ideas? Gothboy. The shift quadrant should be changed to accomodate the extra range. Most will switch to the 350 turbo,,,,with a 2. Main reason to switch would be for better gas mileage on the freeways and around town. I also use an old turbo 350 bail wire to secure the cover. It's not a little short, it's a LOT short for regular drivability. 04:1 first gear, a TH350's first gear is like 2. You will need to elongate the holes for the LM7 flexplate to converter bolt holes. The 1965-1966 Shelby GT-350 was really a souped-up Mustang 2+2 fastback with a few modifications. 77 c-10 - 77 400 86 700r4 "Emmy". First, the 700r4 needs the overdrive to be controlled, a kit that does this needs to be installed in the valve body. #2, the cost to build and beef up a Th350 is much cheaper than building and beefing up a 700r4. ATS Diesel Performance Torque Converter Lock Up Kits 601-990-2284. Combined Cancer/Birth Defect WARNING This product can expose you to chemicals including Cadmium which is known to the State of California to cause cancer on birth defects or other reproductive harm. Then when you moount the trans leave the bolt at the pass top out, as the LM7 isn't drilled for it. The fluid pan shape is irregular, being likened to distorted Texas state borders. 1957 to 1964, 371 / 394 Olds Motor to Chevy Transmission. Have a 67 Camaro 12 bolt 3:55 posi. C10 long bed (Frankenstein truck) Engine Size.